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3 years ago

F(x)=1/3(4-x)^2 what is the value of f(16)

2 answers:

7 0

Answer:
48
Step-by-step explanation:
Wherever you see an x on the right, you put a 16. That's what f(16) means.
f(16) = 1/3 (4 - 16)^2
f(16) = 1/3 (- 12)^2
f(16) = 1/3 (144)
f(16) = 48

lbvjy [14]3 years ago

5 0

I got 48 as my answer

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Mr. Good Wrench advertises that a customer will have to wait no more than 30 minutes for an oil change. A sample of 26 oil chang

Andru [333]

Answer:

The 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).

Step-by-step explanation:

The (1 - α)% confidence interval for the population standard deviation is:

$CI=\sqrt{\frac{(n-1)s^{2}}{\chi^{2}_{\alpha/2, (n-1)}}}\leq \sigma\leq \sqrt{\frac{(n-1)s^{2}}{\chi^{2}_{1-\alpha/2, (n-1)}}}$

The information provided is:

n = 26

s = 4.8 minutes

Confidence level = 90%

Compute the critical values of Chi-square as follows:

$\chi^{2}_{\alpha/2, (n-1)}=\chi^{2}_{0.10/2, (26-1)}=\chi^{2}_{0.05, 25}=37.652$

$\chi^{2}_{1-\alpha/2, (n-1)}=\chi^{2}_{1-0.10/2, (26-1)}=\chi^{2}_{0.95, 25}=14.611$

*Use a Chi-square table.

Compute the 90% confidence interval for the population standard deviation waiting time for an oil change as follows:

$CI=\sqrt{\frac{(n-1)s^{2}}{\chi^{2}_{\alpha/2, (n-1)}}}\leq \sigma\leq \sqrt{\frac{(n-1)s^{2}}{\chi^{2}_{1-\alpha/2, (n-1)}}}$

$=\sqrt{\frac{(26-1)\times 4.8^{2}}{37.652}}\leq \sigma\leq \sqrt{\frac{(26-1)\times 4.8^{2}}{14.611}}\\\\=3.9113\leq \sigma\leq 6.2787\\\\\approx 3.9 \leq \sigma\leq6.3$

Thus, the 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).

3 0

3 years ago

The Giordanos buy $8500 worth of

Molodets [167]

8500-3000is 5500
So 10% of 5500is 550. (Assuming this is a a one time fee)
So add both together to get the remaining balance to break down into payments
6050 divided by 30=201.67

8 0

3 years ago

A length of rope is stretch between the top edge of the building at stake in the ground the head of the state is at ground level

amid [387]

Because the tree is the halfway point, the building would be twice as tall:

The building is 38 x 2 = 76 feet tall.

3 0

3 years ago

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A 3 cm x 10 cm rectangle sit inside a circle with radius of 12 cm what is the area of the circle

snow_tiger [21]

Answer:

144π

Step-by-step explanation:

radius = 12 cm

area of the circle = π* r² = π * 12² = 144π

6 0

3 years ago

A distância ideal para assistir à tv de 29 polegadas é de, aproximadamente, 1,8m a pessoa deve ficar a uma distância de cerca de

Usimov [2.4K]

Can you please repeat that in English?

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3 years ago